What was found
LOST BOTH NR 1 AND 2 AUTO PRESSURIZATION CONTROLLERS AT 8,000 FEET. WITH THE CABIN OUTFLOW VALVE FULLY CLOSED CABIN CLIMBED AT 400 FEET. UNABLE TO CONTROL IN MANUAL. REMOVED AND REPLACED OUTFLOW VALVE ASSEMBLY.
- Difficulty date
- September 5, 2001
- Submitted
- September 7, 2001
- Operation
- Air carrier
- Aircraft
- N701ME
- Make and model
- Doug MD88
- Aircraft serial
- 49760
- Aircraft time
- 44,755 hours, 15,677 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Part number
- 5653731503
- Part serial
- 0272
- Condition
- Failed
- Location
- Cabin Pressure
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.